This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
full bulletin at NHTSA ↗2019 Chevrolet Tahoe electrical problems
severe Owners of the 2019 Chevrolet Tahoe have filed 12 NHTSA complaints about the electrical at roughly $850 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
Complaints
12
Recalls
0
Avg fix
$850
| Model year | electrical complaints |
|---|---|
| 2015 Tahoe | 104 |
| 2016 Tahoe | 19 |
| 2017 Tahoe | 17 |
| 2018 Tahoe | 11 |
| 2019 Tahoe (this page) | 12 |
| 2020 Tahoe | 9 |
| 2021 Tahoe | 45 |
| 2022 Tahoe | 29 |
| 2023 Tahoe | 27 |
1crash
1injury
When does it fail?
Of the 12 electrical complaints filed for the 2019 Chevrolet Tahoe, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA electrical complaint has been filed on this vehicle in over 7 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
full bulletin at NHTSA ↗This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
full bulletin at NHTSA ↗This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
full bulletin at NHTSA ↗This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners of 2019 Chevrolet Tahoes describe a pattern of electrical failures that cluster around moisture exposure and intermittent faults hard for dealers to reproduce. Windshield wipers fail completely or work only at high speed, especially after rain or car wash; dealerships have replaced wiper systems without lasting fixes. Infotainment screens and instrument clusters malfunction when the vehicle is wet, with unintended button presses and random resets. Instrument cluster communication loss (code U0155) prevents gear position display, temperature display, and turn signal feedback.
More critical: several owners report total power loss at highway speeds—dash goes black, steering and braking capacity vanish, engine quits. Power returns briefly after, but the problem recurs. One owner experienced a "Reduced Steering Assist" fault that immobilized the steering wheel and limited vehicle speed to 5 mph; dealership spent three weeks unable to replicate or fix it. Another saw temporary stall at 65 mph followed by a trailer brake warning. Service Trailer Brake System messages appear on vehicles with very low mileage and no trailer use. One owner's airbags failed to deploy in a front-end collision despite frame damage.
Dealerships frequently cannot identify root causes, even after extended diagnostics. Chevy customer service has been slow or nonresponsive. Owners report warranty coverage gaps and repair costs around $1,200 for module replacement.
Same Chevrolet Tahoe electrical reports on nearby years: 2016 · 2017 · 2018 · 2021 · 2022
Failure modes owners describe
Windshield wiper malfunction
Wipers fail to work intermittently or completely, especially after moisture exposure or car wash. Owners report wipers may work only at high speed, then fail entirely days later. Dealerships have replaced complete wiper blade systems without resolving the issue. Owners suspect relay/electrical design flaw exacerbated by moisture, particularly problematic for off-road/snow-driving owners.
When: Intermittent from new; total failure after several months of ownership
Symptoms owners cite: Wipers do not work at all; Wipers work only on high speed; Wipers fail after moisture exposure or car wash; Intermittent wiper operation
Repairs/costs cited: Complete wiper blade system replaced; relays at bottom of fuse box suspected as cause
Total power loss and loss of steering/braking
Vehicle loses all electrical power while driving at highway speeds, resulting in loss of steering assist, braking capacity, and engine acceleration. Dash goes completely black with no warning. Power returns after brief period; dash lights then display at full brightness with no dimmer control. Occurs multiple times. Owner reports dealership refused service and Chevy customer service has not provided support for four months.
When: Multiple occurrences during highway driving
Symptoms owners cite: Complete loss of power while driving; Loss of steering assist and braking capacity; Dash screen goes completely black; Vehicle cannot accelerate or brake (drift mode only); Dash lights return at full brightness with no dimmer control; Recurrent power loss events
Recalls/TSBs owners mention: Chevy customer service contacted four months prior; no support provided. Dealership refused service.
Infotainment and instrument cluster malfunction triggered by moisture
When vehicle is wet from rain or car wash, infotainment system, instrument cluster, and electrical features malfunction. Owners report abnormal touch screen sounds indicating unintentional button presses, instrument panel resets, and glitchy behavior either while driving or the following day. Issues occur at 44,670 miles and 50,000 miles. No warning lights. Dealers unable to identify cause.
When: Occurs after moisture exposure; first reported around 44,670–50,000 miles
Symptoms owners cite: Infotainment and instrument cluster malfunction when vehicle is moist; Abnormal sound on touch screen (unintentional button presses); Instrument panel independently resets; Glitchy display and center console behavior; Infotainment center lighting and instrument panel lighting flickers; Display switches from mileage/RPM to radio settings on its own
Recalls/TSBs owners mention: Manufacturer notified; advised failure was unfamiliar and to take to dealer for diagnosis. Case opened by manufacturer but vehicle not repaired.
Reduced steering assist and drivability fault
Message 'REDUCED STEERING ASSIST DRIVE WITH CARE' appears at startup. When message active, vehicle will not go in reverse, steering wheel is immobile, and vehicle only goes ~5 mph in drive. Issue intermittent and difficult to replicate; dealership unable to find cause after 3 weeks of service and multiple test cycles. Error code U0100 present on first visit; additional codes currently being obtained.
When: Started 11/26, approximately one month after purchase (10/27)
Symptoms owners cite: REDUCED STEERING ASSIST message appears at startup; Vehicle will not go in reverse when message active; Steering wheel immobile; Vehicle limited to ~5 mph in drive; Intermittent; difficult to replicate
Codes mentioned: U0100
Repairs/costs cited: Vehicle in service 3 weeks; no solid cause found despite multiple test cycles and video documentation
Temporary power loss and stall at highway speed
While driving 65 mph, vehicle temporarily lost power and stalled. No warning lights illuminated before event. Warning message regarding trailer brake appeared afterward. Alarm had been engaging inadvertently for a month prior. Dealership refused service (vehicle purchased elsewhere); manufacturer case opened but vehicle not repaired.
When: At 28,000 miles; alarm issue present for approximately one month prior
Symptoms owners cite: Vehicle lost power and stalled while driving 65 mph; No warning lights before stall; Trailer brake warning message appeared after stall; Alarm engaging inadvertently for month prior to failure
Recalls/TSBs owners mention: Manufacturer made aware and opened case; vehicle not repaired. Dealership refused service citing vehicle not purchased or modified there.
Service Trailer Brake System message and weak start
Vehicle with only 9,900 miles exhibited weak start (slow to crank) followed by 'Service Trailer Brake System' warning message. Dealership diagnosed a module failure requiring replacement at cost of $1,227. Owner never used trailer. Repair needed at 8 months and 9,900 miles—just beyond 8-month warranty coverage. Owner reports numerous other owners report the same issue online.
When: 9,900 miles, 8 months after purchase (12/4/2018)
Symptoms owners cite: Weak vehicle start (slow to crank, eventually starts); Service Trailer Brake System message appears
Repairs/costs cited: Module replacement required; cost $1,227. Vehicle outside 8-month dealer warranty.
Seat belt warning chime excessively loud and long
With driver's seat belt unfastened, seat belt warning chime was louder and lasted longer than normal, preventing driver from hearing an ambulance behind the vehicle. Near-crash averted. Vehicle not taken to dealer or repaired.
When: At 1,000 miles
Symptoms owners cite: Seat belt warning chime louder than normal; Chime duration longer than normal; Driver unable to hear external warning sounds (ambulance siren)
Recalls/TSBs owners mention: Manufacturer contacted; vehicle not diagnosed or repaired
Instrument cluster communication loss
Multiple instrument cluster failures including PRNDL (gear position indicator) not displaying transmission position, multiple service messages and MIL codes on Driver Information Center, radio not displaying temperature, and no audible feedback or IPC indicator for turn signals. Owner found service bulletin describing the exact problem and found multiple complaints online with same issue. Diagnostic code U0155 (Lost Communication with Instrument Cluster) present.
When: <UNKNOWN>
Symptoms owners cite: PRNDL does not indicate transmission position; Multiple service messages on Driver Information Center; Multiple MILs illuminated; Radio does not display temperature; No audible feedback when turn signals operate; No IPC indicator when turn signals operate
Codes mentioned: U0155
Recalls/TSBs owners mention: Service bulletin exists describing this exact problem
Airbag non-deployment in front-end collision
Vehicle involved in front-end collision at intersection (passenger side impacted, vehicle spun across median). Airbags did not deploy despite severe damage (frame damage, extensive front-end damage). Other vehicle's airbags deployed normally. Owner sustained injuries (chin, head, arm impact, nausea) that airbags should have prevented.
When: <UNKNOWN>
Symptoms owners cite: Airbags failed to deploy in front-end collision; Frame damage sustained; Extensive front-end damage sustained; Owner head and chin impact; Owner arm impact; Owner nausea following impact
Synthesized from 12 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 4 most recent
Purchased 2019 Chevy tahoe lt on 10/27. Began having serious electrical issues on 11/26 with the message of 'reduced steering assist drive with care' message appearing after vehicle startup. When this message appears vehicle will not go in reverse and steering wheel won't move and car only goes about 5 MPH in drive. Car was towed and issue wasn't duplicating at dealer. They did inspection and…
Air condition evaporation control faulty.
While driving on the freeway truck had lost all power and steering and braking capacity. The screen on dash went completely black with no warning signs. Vehicle could not accelerate and or brake other than drift in lane. Vehicle was without power for a brief time until power came back was able to not crash vehicle as this happened at a high rate on speed on busy freeway. When power did engage…
I purchased my 2019 Tahoe 12/4/2018 and it is a 2019. I have only 9900 miles on the vehicle. In a parking lot my vehicle would not start correctly it was weak but eventually did start. THEN a message appeared and said Service Trailer Brake System. I drove to Starling Chevrolet Mt. Pleasant, SC and they diagnosed it as a module that is going to cost me 1,227.00 . I have never used a…
Had electrical trouble with your 2019 Chevrolet Tahoe?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2019 Chevrolet Tahoe?
It's a meaningful issue. 12 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 12 complaints filed, electrical issues most often appear around 54,764 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2019/Chevrolet/Tahoe.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.